TDA7419TR STMicroelectronics, TDA7419TR Datasheet - Page 19

• Manufacturer Part Number: TDA7419TR
• Description: IC PROCESSOR CAR AUD 3BAND 28SOI
• Manufacturer: STMicroelectronics
• Type: Audio Processorr

Specifications of TDA7419TR

• Applications: Radio
• Mounting Type: Surface Mount
• Package / Case: 28-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TDA7419
4.5.1
4.6
Figure 7.
1. Please notice that a started mute-action is always terminated and could not be interrupted by a change of
Soft-step volume
When the volume level is changed audible clicks could appear at the output. The root cause
of those clicks
could either be a DC-Offset before the volume-stage or the sudden change of the envelope
of the audiosignal. With the soft-step feature both kinds of clicks could be reduced to a
minimum and are no more audible. The blend-time from one step to the next is
programmable in four steps.
Figure 8.
1. For steps more than 0.5dB the Soft-step mode should be deactivated because it could generate a hard
Bass
There are four parameters programmable in the bass stage:
the mute -signal
1dB step during the blend-time.
Soft-mute timing
Soft-step timing
-0.5dB
0.5dB
-1dB
1dB
V
+SIGNAL
-SIGNAL
I
OUT
2
MUTE
C BUS
EXT.
OUT
REF
1
1
SS Time
D97AU634
Description of the audio processor
D00AU1170
Time
Time
19/40